Question 1

The indicator organism for human pathogens in a water supply is:

Accepted Answer

A)  Escherichia coli
B)  Salmonella typhi
C)  Poliovirus
D)  Staphylococcus aureusE) B) and D)
F) A) and D)

Question 2

Most denitrification is due to _____.

Accepted Answer

A)  Rhizobium
B)  Azotobacter
C)  Pseudomonas
D)  NitrosomonasE) C) and D)
F) None of the above

Question 3

Eutrophication leads to:

Accepted Answer

A)  a decrease in oxygen
B)  plants become very dense
C)  abundant nutrient enrichment
D)  all of these choicesE) B) and C)
F) A) and B)

Question 4

Which bacteria are found in the desert and are oil eating

Accepted Answer

A)  Halobacterium
B)  Desulfurovibrio
C)  Thiobacillus
D)  ArthrobacterE) B) and D)
F) C) and D)

Question 5

Nitrogenase is:

Accepted Answer

A)  oxygen sensitive
B)  only produced by Rhizobium
C)  a N₂ fixing enzyme
D)  two of these choicesE) None of the above
F) B) and C)

Question 6

In testing for water purity,the presumptive test would include:

Accepted Answer

A)  Eosin-methylene blue agar
B)  Lactose broth
C)  Nutrient agar
D)  Gram stainE) A) and C)
F) A) and D)

Question 7

The sulfur cycle is of special importance to:

Accepted Answer

A)  terrestrial life
B)  pseudomonas
C)  proteolytic bacteria
D)  aquatic lifeE) None of the above
F) B) and D)

Question 8

The trickling filtration system employs a bed of rocks that have been coated with:

Accepted Answer

A)  Sphaerotilus
B)  Pseudomonas
C)  Beggiatoa
D)  two of these choicesE) C) and D)
F) All of the above

Question 9

The primary producers in the ocean are:

Accepted Answer

A)  bacteria
B)  viruses
C)  phytoplankton
D)  two of these choicesE) None of the above
F) B) and D)

Question 10

Sulfate-reducing bacteria are characteristically _____.

Accepted Answer

A)  strict anaerobes
B)  desulfovibrio
C)  utilizing sulfate as a final electron acceptor
D)  all of these choicesE) B) and C)
F) A) and D)

Exam 26: Environmental Microbiology

The sulfur cycle is of special importance to:

Correct Answer
verified

In testing for water purity,the presumptive test would include:

Correct Answer
verified

The trickling filtration system employs a bed of rocks that have been coated with:

Correct Answer
verified

Most denitrification is due to _____.

Correct Answer
verified

Which bacteria are found in the desert and are oil eating

Correct Answer
verified

Eutrophication leads to:

Correct Answer
verified

Sulfate-reducing bacteria are characteristically _____.

Correct Answer
verified

Nitrogenase is:

Correct Answer
verified

The primary producers in the ocean are:

Correct Answer
verified

The indicator organism for human pathogens in a water supply is:

Correct Answer
verified

Exam 26: Environmental Microbiology

The sulfur cycle is of special importance to:

Correct AnswerverifiedShow Answer

In testing for water purity,the presumptive test would include:

Correct AnswerverifiedShow Answer

The trickling filtration system employs a bed of rocks that have been coated with:

Correct AnswerverifiedShow Answer

Most denitrification is due to _____.

Correct AnswerverifiedShow Answer

Which bacteria are found in the desert and are oil eating

Correct AnswerverifiedShow Answer

Eutrophication leads to:

Correct AnswerverifiedShow Answer

Sulfate-reducing bacteria are characteristically _____.

Correct AnswerverifiedShow Answer

Nitrogenase is:

Correct AnswerverifiedShow Answer

The primary producers in the ocean are:

Correct AnswerverifiedShow Answer

The indicator organism for human pathogens in a water supply is:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified